28873196 has 24 divisors (see below), whose sum is σ = 55566336. Its totient is φ = 13018320.

The previous prime is 28873193. The next prime is 28873213. The reversal of 28873196 is 69137882.

It is a super-2 number, since 2×28873196² = 1667322894508832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (28873193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3005 + ... + 8171.

It is an arithmetic number, because the mean of its divisors is an integer number (2315264).

Almost surely, 2^28873196 is an apocalyptic number.

It is an amenable number.

28873196 is a deficient number, since it is larger than the sum of its proper divisors (26693140).

28873196 is a wasteful number, since it uses less digits than its factorization.

28873196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309 (or 5307 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 28873196 is about 5373.3784530777. The cubic root of 28873196 is about 306.7832328344.

The spelling of 28873196 in words is "twenty-eight million, eight hundred seventy-three thousand, one hundred ninety-six".